Note 3 - Discontinued Operations - Income From Discontinued Operations Before Income Taxes (Details) - USD ($)	3 Months Ended	9 Months Ended
Aug. 31, 2018	Aug. 31, 2017	Aug. 31, 2018	Aug. 31, 2017
Income (loss) from operations of discontinued segment		$ (26,449)	$ (67,177)	$ (49,238)
Discontinued Operations, Held-for-sale [Member] \| Vessels Segment [Member]
Revenue from external customers
Gross profit
Operating expense		17,082	51,133	40,905
Income (loss) from operations		(17,082)	(51,133)	(40,905)
Income (loss) from operations of discontinued segment		$ (26,449)	$ (67,177)	$ (49,238)

Amount before tax of income (loss) from a discontinued operation. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.

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